(function($) {
	
	$.fn.tweet = function(o){
		var s = {
			username: ["marcel020"],							// [string]   required, unless you want to display our tweets. :) it can be an array, just do ["username1","username2","etc"]
			list: null,											// [string]   optional name of list belonging to username
			avatar_size: null,									// [integer]  height and width of avatar if displayed (48px max)
			count: 3,											// [integer]  how many tweets to display?
			intro_text: null,									// [string]   do you want text BEFORE your your tweets?
			outro_text: null,									// [string]   do you want text AFTER your tweets?
			join_text:  null,									// [string]   optional text in between date and tweet, try setting to "auto"
			auto_join_text_default: "schreef ik,",				// [string]   auto text for non verb: "i said" bullocks
			auto_join_text_ed: "ik",							// [string]   auto text for past tense: "i" surfed
			auto_join_text_ing: "ik ben",						// [string]   auto tense for present tense: "i was" surfing
			auto_join_text_reply: "antwoordde ik",				// [string]   auto tense for replies: "i replied to" @someone "with"
			auto_join_text_url: "ik keek op",   				// [string]   auto tense for urls: "i was looking at" http:...
			loading_text: "Twitter berichten aan het laden...", // [string]   optional loading text, displayed while tweets load
			query: null,										// [string]   optional search query
			refresh_interval: null ,							// [integer]  optional number of seconds after which to reload tweets
			twitter_url: "twitter.com",							// [string]   custom twitter url, if any (apigee, etc.)
			twitter_api_url: "api.twitter.com",					// [string]   custom twitter api url, if any (apigee, etc.)
			twitter_search_url: "search.twitter.com",			// [string]   custom twitter search url, if any (apigee, etc.)
			show_time: 1
		};
		
		if(o) $.extend(s, o);
		
		$.fn.extend({
			linkUrl: function() {
				var returning = [];
				// See http://daringfireball.net/2010/07/improved_regex_for_matching_urls
				var regexp = /\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/gi;
				this.each(function() {
					returning.push(this.replace(regexp, function(match) {
						var url = (/^[a-z]+:/i).test(match) ? match : "http://"+match;
						return "<a href=\""+url+"\">"+match+"</a>";
					}));
				});
				return $(returning);
			},
			linkUser: function() {
				var returning = [];
				var regexp = /[\@]+([A-Za-z0-9-_]+)/gi;
				this.each(function() {
					returning.push(this.replace(regexp,"<a href=\"http://"+s.twitter_url+"/$1\">@$1</a>"));        });
				return $(returning);
			},
			linkHash: function() {
				var returning = [];
				var regexp = /(?:^| )[\#]+([A-Za-z0-9-_]+)/gi;
				this.each(function() {
					returning.push(this.replace(regexp, ' <a href="http://'+s.twitter_search_url+'/search?q=&tag=$1&lang=all&from='+s.username.join("%2BOR%2B")+'">#$1</a>'));
				});
				return $(returning);
			},
			capAwesome: function() {
				var returning = [];
				this.each(function() {
					returning.push(this.replace(/\b(awesome)\b/gi, '<span class="awesome">$1</span>'));
				});
				return $(returning);
			},
			capEpic: function() {
				var returning = [];
				this.each(function() {
					returning.push(this.replace(/\b(epic)\b/gi, '<span class="epic">$1</span>'));
				});
				return $(returning);
			},
			makeHeart: function() {
				var returning = [];
				this.each(function() {
					returning.push(this.replace(/(&lt;)+[3]/gi, "<tt class='heart'>&#x2665;</tt>"));
				});
				return $(returning);
			}
		});
		
		function parse_date(date_str) {
			// The non-search twitter APIs return inconsistently-formatted dates, which Date.parse
			// cannot handle in IE. We therefore perform the following transformation:
			// "Wed Apr 29 08:53:31 +0000 2009" => "Wed, Apr 29 2009 08:53:31 +0000"
			return Date.parse(date_str.replace(/^([a-z]{3})( [a-z]{3} \d\d?)(.*)( \d{4})$/i, '$1,$2$4$3'));
		}
		
		function relative_time(time_value) {
			var parsed_date = parse_date(time_value);
			var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
			var delta = parseInt((relative_to.getTime() - parsed_date) / 1000, 10);
			var r = '';
			if (delta < 60) {
				r = delta + ' seconden geleden';
			} else if(delta < 120) {
				r = 'een minuut geleden';
			} else if(delta < (45*60)) {
				r = (parseInt(delta / 60, 10)).toString() + ' minuten geleden';
			} else if(delta < (2*60*60)) {
				r = 'een uur geleden';
			} else if(delta < (24*60*60)) {
				r = '' + (parseInt(delta / 3600, 10)).toString() + ' uur geleden';
			} else if(delta < (48*60*60)) {
				r = 'een dag geleden';
			} else {
				r = (parseInt(delta / 86400, 10)).toString() + ' dagen geleden';
			}
			return 'ongeveer ' + r;
		}
		
		function build_url() {
			if(s.static_json){
				return s.static_json;
			}
			var proto = ('https:' == document.location.protocol ? 'https:' : 'http:');
			if (s.list) {
				return proto+"//"+s.twitter_api_url+"/1/"+s.username[0]+"/lists/"+s.list+"/statuses.json?per_page="+s.count+"&callback=?";
			} else if (s.query == null && s.username.length == 1) {
				return proto+'//'+s.twitter_api_url+'/1/statuses/user_timeline.json?screen_name='+s.username[0]+'&count='+s.count+'&include_rts=1&callback=?';
			} else {
				var query = (s.query || 'from:'+s.username.join(' OR from:'));
				return proto+'//'+s.twitter_search_url+'/search.json?&q='+encodeURIComponent(query)+'&rpp='+s.count+'&callback=?';
			}
		}
		
		return this.each(function(i, widget){
			var list = $('<ul class="tweet_list">').appendTo(widget);
			var intro = '<p class="tweet_intro">'+s.intro_text+'</p>';
			var outro = '<p class="tweet_outro">'+s.outro_text+'</p>';
			var loading = $('<p class="loading">'+s.loading_text+'</p>');
			
			if(typeof(s.username) == "string"){
				s.username = [s.username];
			}
			
			if (s.loading_text) $(widget).append(loading);
			$(widget).bind("load", function(){
				$.getJSON(build_url(), function(data){
					if (s.loading_text) loading.remove();
					if (s.intro_text) list.before(intro);
					list.empty();
					var tweets = (data.results || data);
					$.each(tweets, function(i,item){
						// auto join text based on verb tense and content
						if (s.join_text == "auto") {
							if (item.text.match(/^(@([A-Za-z0-9-_]+)) .*/i)) {
								var join_text = s.auto_join_text_reply;
							} else if (item.text.match(/(^\w+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+) .*/i)) {
								var join_text = s.auto_join_text_url;
							} else if (item.text.match(/^((\w+ed)|just) .*/im)) {
								var join_text = s.auto_join_text_ed;
							} else if (item.text.match(/^(\w*ing) .*/i)) {
								var join_text = s.auto_join_text_ing;
							} else {
								var join_text = s.auto_join_text_default;
							}
						} else {
							var join_text = s.join_text;
						};
						
						var from_user = item.from_user || item.user.screen_name;
						var profile_image_url = item.profile_image_url || item.user.profile_image_url;
						var join_template = '<span class="tweet_join"> '+join_text+' </span>';
						var join = ((s.join_text) ? join_template : ' ');
						var avatar_template = '<a class="tweet_avatar" href="http://'+s.twitter_url+'/'+from_user+'"><img src="'+profile_image_url+'" height="'+s.avatar_size+'" width="'+s.avatar_size+'" alt="'+from_user+'\'s avatar" title="'+from_user+'\'s avatar" border="0"/></a>';
						var avatar = (s.avatar_size ? avatar_template : '');
						if (s.show_time) {
							var date = '<span class="tweet_time"><a href="http://'+s.twitter_url+'/'+from_user+'/statuses/'+item.id_str+'" title="view tweet on twitter">'+relative_time(item.created_at)+'</a></span>' + join;
						} else {
							var date = '';	
						}
						var text = '<span class="tweet_text">' +$([item.text]).linkUrl().linkUser().linkHash().makeHeart().capAwesome().capEpic()[0]+ '</span>';
						
						// until we create a template option, arrange the items below to alter a tweet's display.
						list.append('<li>' + avatar + '<span class="tweet_content">' + date + text + '</span></li>');
						
						list.children('li:first').addClass('tweet_first');
						list.children('li:odd').addClass('tweet_even');
						list.children('li:even').addClass('tweet_odd');
					});
					if (s.outro_text) list.after(outro);
					$(widget).trigger("loaded").trigger((tweets.length == 0 ? "empty" : "full"));
					if (s.refresh_interval) {
						window.setTimeout(function() { $(widget).trigger("load"); }, 1000 * s.refresh_interval);
					};
				});
			}).trigger("load");
		});
	};
})(jQuery);